Homework Statement
https://moodle.telt.unsw.edu.au/pluginfile.php/2296810/question/questiontext/2691158/6/1668509/cart%20track.png
A block of ice (that we shall treat as a particle) slides with negligible friction or air resistance on the curved tpath sketched (black line). The mass of the...
That's a good new :smile:hh
Yes i will check them coz it is an online quiz, and once i submit it i get marked...
So I really want to make sure they are correct
For the efficiency , I think I did useful/input: ''[total_energy(input) - energy_air_resistance(loss) ]/total_energy(inpit)...
Thanks for replying
1.2 litres = 1.2 * 10^-3 m^3
rpm=3000 -> time_for_2revlotions=2/3000 mins=1/1500 *60 sec=0.04 sec
So volume_per_sec=dV=(1.2 * 10^-3 m^3) per (0.04 sec) =0.03 m^3/sec
speed_of_gas=50m/s from the question
If the diameter = Z m
Then Pi * (Z/2)^2 * 50 =...
Homework Statement
The problem:
Here is an approximate reaction for burning hydrocarbons in air:
(CH2)n + 1.5*n O2 + 6n N2 -> n CO2 + n H2O + 6n N2 (n is an integer)
The (CH2)n approximates the fuel, and everything on the right is the exhaust. The atomic masses of hydrogen, carbon, nitrogen...